Subsoil packer



pril 7, 1925.

v; F. LASSAGNE 1533p SUBSOIL PACKBR Filed Oct. 31. 1923 W 1s 16 r I Patented Apr. 7, 1925.

vIcToRrJLAssAGnE,"or CHICAGO, ILnInoIs.

sma'son. "PAGK'ER.

Application filed October 31,1923. -seria1-Na crn915.

'1 "'0 all whom it may concern:

Be it known that I, VIcToR'F. Lnssacixn, a citizen of the United 'States, residing at Chicago, in the. county of'Cook and State of Illinois, haveinvented certain new and useful Improvements in Subsoil Pa'ckers,'of which the following is a full, clear, and exact specification.

This invention relates to improvements in tillage tools and more particularly to soil pulverizers and sub-soil packers.

In machines of the type having a lower, or implement, frame including pulverizing rollers and an upper, or draft, frame with which the implement frame is connected'for rocking movement, it is desirable to provide a form of flexible or rocking connection between the frames that will so transmit the tractive force and weight from the upper frame to the rollers, or equivalent tools, as to give maximum pulverizing' and packing effects and at the same time afford easy traction and smooth riding. Those are the objects of this invention, and they have been attained by employment of a novel form of flexible connection between the frames comprising, in the specific form herein disclosed, of intersecting supporting bars which are bodilymovable with respect to each other and each of which is pivoted to the respective frames in substantially the san' e vertical planeswith the axes of the rollers. Also, by incorporating in the structure novel means whereby the tractive force can be variably applied to the rollers as may be necessary for best results with different soil conditions, said means comprising members arranged to transmit a draft thrust to the front rollers. I

The invention, therefore, resides in theorganization and details of construction, or equivalents thereof. hereinafter more particularly described.

Referring to the drawings Fig. 1 is a side elevation of an implement comprising the invention;

Fig. 2 is a plan view of one end of the same;

Fig. 3 is a similar front view;

Fig. 4 is a sectional plan view tl'iroug'h the connecting members;

Fig. 5 is a side elevation showing the change in relation of elements when passing over an obstruction;

Fig. 6 is a side elevation of a modified construction; and

"axles, constitute the implement frame. ispreferabl'e ,thatth'e forward disk "rollrlO Fig; 7 is a similar view'with the front roller 1n: differentad ustment.

In the present instance the invention is illustrated in connection with ahindepacker orlpulverize'r having parallel disk rollers 10, 11, the axles of whichare connected at each end by links 12, which, together with the It be of larger diameter than therear-roller, as SllOWIllIl the drawlngs,'=and-that the re-' spective disks composing the front and "rear rollersibe arranged in alternating relation asusualin this type of machine. The implement frame is connected to and supports an upper or draftframe -1 3which is pro vided with the usual centrally positioned draft tongue 14 andwith end brackets 1-5 connecting the ends ofthe transverse-members of the frame. A flexible supporting connection is providedbetween. each end of the upper and lower frames, each of which comprises a pair of supporting bars '16, 1'7,

ceives the axle of the front roller. Similarly, bar 16 extends rearwardly and has a journal sleeve 19 receiving the rear roller, each of the sleeves 18, 19 being preferably positioned between the end disks and the ends of the link 12. In order to provide for variation in the direction of draft thrust applied to the axle of the front roller through bars 17, provision is made for connecting the rear end of each bar 17 adjustably on brackets 15. In the present instance, this means is shown as consisting of a series of openings 20 formed in a depending portion 21 of the brackets 15. The openings 20 are arranged in an are about the axis of the front roller, and the bars 17 can according;- ly be pivoted in either of the openings 20 simply by removing the pivot pins 2-2 which connect the bars to brackets 15, moving; the end of bars 17 to any opening desired, and inserting the pivot pins in the selected openings.

In Figs. 6 and 7 there is illustrated a modified construction which retains the general relation of elements above described but in which theend members or links 12 are replaced by modified links 23 which are formed near the forward ends withvpivot ears 2 f, to which the lower ends of bars 17 are pivoted instead of on the axle of the roller as in the previous construction. In this form each end member or link .ilis provided with means at its forward end by which the axle of the front roller may be set or positioned at variable points on the forward end of the link 23." In the present instance such means is provided by forming each link '23 with a forward and upward extension 25 in which there is a series of front roller is therefore generally vertical and in a line oblique to the longitudinal axis of the link 23, thus providing for adjustment of the roller inan upward and downward as well as forward direction with relation to the point of draft application or propelling force applied to cars 24:. It is accordingly possible to place the roller axle in the rear one of the bearings 26 and directly beneath ears 24, as in Fig. 6, in which case the thrust of the draft would be applied directly above the axle, or, in any of the forward open- H ings. in which cases the draft would be applied practically in line with or below the axle, the highest upward adjustment of the forward roller with respect to the pivot of links 17 on ears 24.- being shown by Fig. ,l. Preferably, adjustment for the upper end of bars 17 is also provided, but in this species the arc of adjustment is about the pivot to cars It will be understood that flexible supporting means between the upper and lower frames, such as jnst'described, are provided at each end of the frames and that they are, of course, exactly alike, and that in either of the species of the invention above de scribed the implement frame in which the rollers 10 and 11 are'comprised is freely movable with respect to the upper f'ame,

the "supporting members moving with relation to one another, as illustrated in Fig. '5. when passing over uneven surfaces. I

lVith the constructions described it will be evident that the respective rollers rise and fall with respect to each other as they ride over clods and rough ground during operation and that the movements of the crossed supporting members 16, 17 will be such as to cause the weight of'the upper frame to be lifted when either roller passes over a rise or obstruction in its path.

For example, when the front roller moves up, as

in Fig. 5, its axle must move in an are about pivot pins 22 as a center, but as the front axle is tied to the rear axle by the end members or links 12 an upward thrust is imparted to bars 16 and to the upper frame. The higher the upper ends of bars 17 are set in the brackets 20, the more lifting efiect there will be on the upper frame and the greater the crushing effect of the front roller, both by reason of the weight moved and by reason of the direction of the "draft thrust applied to the front roller through bars 17, this thrust becoming more effective as the inclination of bars 17 is increased by placing their pivot point higher on the brackets. In the species of Flgs. ti and 7 where adjustment for the front roller in, a forward and upward directionis provided, this too has the effect of varying the direction of the draft thrust or pressure applied thereto. The more the'front roller axle is placed forward and above the point of draft application, as illustrated by Fig. -7, the easier the front roller will ride over ob' structions and the less will be its tendency to dig in when on loose or fluffy soil, the

effect of such adjustment of the roller being somewhat analogous to that obtained by lowering the handles of a wheelbarrow that is being propelled over a rough or a soft surface. Obviously, front roller adjustment on the end members of the implement frame, such as just described, is applicable with the ,same effect to any land packer or pulverizer having a rockingroller frame and a point of draft application above or behind the front roller axle, irrespective of the particular rocking connection between the upper and lower frames, but, when employed with pivoted crossed members having adjustment as herein disclosed, a greater range of variation in the roller action to suit various soil conditions becomes possible.

The constructions and arrangementsherein described are the preferredembodiments of the invention, but it will be evident to those skilled in the'art that several other practical forms thereof are possible within the scope of the following claims.

Having described the invention, what is clain'led is:

1. An implement comprising the combination of upper and lower frames, a pair of parallel roller carrying shafts comprised 111 the lower frame, and means connecting the ends of the frames for rocking move- 'ment in the direction of travel comprising a pair of crossed supporting bars the ends of which are .pivoted to the respective frames, one of said points ofpivotal connectionbeing ad ustable.

2.;Animplement comprising the combination of upper and lower frames, a pair of parallel roller carrying shaftscomprised in the lower frame, and means Connecting the ends of the frames for rocking move ment in the direction of travel comprising a pair of crossed supporting bars the ends of which are piyoted to the respective frames, the pivotal connection between one of the said bars and the upper frame being adjustable in a vertical plane.

3. An implement comprising the combination of upper and lower frames, roller carrying shafts comprised in the lower frame, and means connecting the frames for rocking movement in the direction of travel comprising pairs of crossed supporting bars pivoted to the respective frames.

al. An implement comprising the combination of upper and lower frames, soil working means carried by the lower frame, and pivoted supporting means connecting the frames for rocking movement in the direction of travel comprising intersecting bars pivoted to the respective frames.

An implement con'iprising the combination of upper and lower frames, soil working means carried by the lower frame, and means connecting the frames for rocking movement comprising oppositely directed members each of which is pivoted to the respective frames at opposite front and rear points.

(3. An innplement comprising the combination of a lower frame, soil working means carried by the lower frame, and an upper frame supported on the lower frame by means permitting rocking movement be tween the frames and comprising a plurality of movable members each of which pivoted to both frames.

7. An implement comprising the combi nation of a lower frame comprising front and rear rollers, and a draft frame supported on the lower frame by flexible means including a connecting bar at each end of the frames pivotally connected at its upper end to the rear of the draft frame and at its forward end to the front of the lower frame.

8. An implement comprising the combi: nation of a lower frame comprising front and rear rollers, and a draft frame supported on the lower frame by flexible means including forwardly directed thrust members pivoted to the rear of the draft frame and to the forward portion of the lower frame.

9. A pulverizer comprising the combination of upper and lower pivotally connected frames, front and rear pulverizing rollers journaled in the lower frame, and means for raising and lowering the beartion of upper and lower pivotally con-.

nected frames, front and rear pulverizing rollers journaled in the lower frame, and means for raising and lowering the bearings of the forward roller on the lower frame.

11. A pulverizer comprising the combinanation of upper and lower pivotally connected frames, the low-er frame comprising end members the forward ends of which have upwardly directed portions, a forward 'iulverizing roller having journals adjustable along said upwardly directed portions of the end members, and a rear roller jourm aled in said end members.

12. A pulverizer comprising the combination of an upper frame, a lower frame including end members having a pivotal connection intermediate their ends with the upper frame, front andrear pulverizing rollers journaled in the end members, and means for setting the forward roller on the end members at different points in advance of said pivotal connection between the frames.

13. A pulverizer comprising the combi nation of an upper frame, a lower frame including end members having a pivotal connection intermediate their ends with the upper frame, front and rear pulverizing rollers journaled in the end members, and means for effecting adjustment of the forward roller towards and from the forward ends of the end members.

14. A pulverizer comprising the combination of an upper frame, a lower frame including end members having a pivotal connection intermediate their ends with the upper frame, front and rear pulverizing rollers journaled in the end members, and means for setting the forward roller on the end members at any of a plurality of selected points in advance of said pivotal connection between the frames and on a line oblique to the longitudinal axis of the end members.

15'. An implement comprising the combination of a lower frame comprising front and rear rollers, and a draft frame supported on the lower frame by pivotal connections comprising members pivoted to the respective frames in substantially the same vertical planes with the axes of the rollers.

In testimony whereof I affix my signature.

VICTOR F. LASSAGNE. 

